package com.sky.controller.admin;

import com.github.pagehelper.Page;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@Slf4j
@RestController
@Api(tags = "菜品相关接口")
@RequestMapping("/admin/dish")
public class DishController
{

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @ApiOperation("新增菜品")
    @PostMapping
    public Result save(@RequestBody DishDTO dishDTO)
    {
        log.info("新增菜品 : {}",dishDTO);

        dishService.saveWithFlavor(dishDTO);

        //清理缓存
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success();
    }

    /**
     * 分页查询菜品
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("分页查询菜品")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO)
    {
        log.info("分页查询菜品 : {}",dishPageQueryDTO);

        PageResult pageResult = dishService.pageQUery(dishPageQueryDTO);

        return Result.success(pageResult);
    }


    /**
     * 菜品批量删除
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public Result delete(@RequestParam List<Long> ids)//由springMVC框架，将前端传递过来的字符串参数，转化为List集合
    {
        log.info("菜品批量删除 : {}",ids);
        dishService.deleteBatch(ids);

        //清理所有菜品缓存数据
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 根据ID获取菜品
     * @param id
     * @return
     */
    @ApiOperation("根据ID获取菜品")
    @GetMapping("/{id}")
    public Result getById(@PathVariable Long id)
    {
        log.info("根据ID获取菜品 : {}",id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);

        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO)
    {
        log.info("修改菜品 : {}",dishDTO);

        dishService.updateWithFlavor(dishDTO);

        //清理所有菜品缓存数据
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 菜品启用禁用
     * @param status
     * @param id
     * @return
     */
    @ApiOperation("菜品启用禁用")
    @PostMapping("/status/{status}")
    public Result startOrStop(@PathVariable Integer status,  Long id)
    {
        log.info("菜品启用禁用 : {},{}",status,id);

        dishService.startOrStop(status,id);

        //清理所有菜品缓存数据
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 根据分类ID查询菜品
     * @param categoryId
     * @return
     */
    @ApiOperation("根据分类ID查询菜品")
    @GetMapping("/list")
    public Result<List<Dish>> list(Long categoryId)
    {
        log.info("根据分类ID查询菜品 : {}",categoryId);

        List<Dish> list = dishService.list(categoryId);

        return Result.success(list);
    }


    /**
     * 统一清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern)
    {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
